.wb{
  width: 100%;
  height: 400px;
  border: 1px solid red;

}
.wb1{
  width: 600px;
  height: 200px;
  border: 1px solid coral;
  margin-left: 90px;
  margin-top: 30px;
  margin: 30px 0px 0px 90px;
}
.wz{
  font-size: 14px;
  color: aqua;

}
.wb3{
  width: 100px;
  height: 50px;
  border: 1px solid coral;
  text-align: center;
  line-height: 50px;
  background-image: url("");
}
body{

}

